Spatial Practice - Research: IR Illumination Methods

After trawling the NUI forums I discovered the best, cheapest method for providing enough infrared light is via Infrared LED Illuminators, specifically ones used for Nightvision/Security cameras.

4 of these placed evenly above the surface should allow the projection surface to be receptive enough to use in the absence of room light/lamps.

http://dx.com/p/ir-48-led-infrared-illumination-light-for-night-vision-dc-12v-500ma-15235


Pending the arrival of this order I will now have to abandon any attempts at visual feedback on the surface, which wont affect its functionality.